The Shark XB660 Replacement Microfibre Flat Scrubber Bonnet delivers great cleaning performance that means that even stubborn stains and spills are easily removed. Keep your kitchen clean Use one side to initially loosen up tough dirt, before flipping it over and using the microfibre pile to lift and remove any remnants - leaving behind a spotless surface. Compatible with the Shark S3901 Mop & SC660 Portable, these bonnets are also machine washable at 40 degrees, meaning you can re-use them. Keep your household hygienic with the Shark XB660 Replacement Microfibre Flat Scrubber Bonnet.